Muffler.



F. 1. HAUMAN.

MUFFLER.

APPLICATION FILED FEB. 271 1911` Patented Dec. 31, 1918.

SII-UNITO@ sion of the FRANK J. HAUMAN, OF BAY SHORE, NEW YORK.

MUFFLER.

Specification of Letters Patent.

Patented Dee. 31, 1918.

Applicatin led February 27, 1917. Serial No. 151,253.

To all whom t may concern:

Be it known that I, FRANK J. HAUMAN, a citizen of the United States, and resident of Bay Shore, in the county of Suffolk and State 0f New York, have invented certain new and useful Improvements in Mufflers, of which the following is a specification.

The present invention relates to an improved muffler which is designed to receive the discharge gases from internal combustion engines and the like, and to discharge them noiselessly, the muffler comprising a cylindrical hollow chamber member with an agitating member rotatably mounted therein.

The primary object of my invention is to provide a device of the class mentioned having means associated therewith to remove all the discharge gases from the discharge pipe of an internal combustion engine and thus avoid the destruction of the mutliers as now commonly used on the smaller typek 0f automobiles, caused by the internal eXplopartially spent gases remaining therein.

A still further object of my invention is to provide a device of the class mentioned having means associated therewith for removing all foreign matter from the chamber and at the same time to break up the discharge gas and thus accomplish the desired result.

A further object of the invention is t0 provide an apparatus in which the parts thereof are closely assembled, and combined, thereby taking up a minimum amount of space, and rendering the device especially applicable for operation in connection with automobiles.

Other improvements and novel details in the construction and arrangement of the various parts of the apparatus will be brought out more in detail in the description to follow, which, for a clear understanding of the invention, should be considered in connection with the accompanying drawing, forming a part hereof, and wherein is disclosed, for the purpose of illustration, convenient and satisfactory embodiments of the invention. It is to be noted, in this connection, that minor changes in the construction and arrangement of the parts may be made with-- out departing from the spirit of the invention or the principle of operation of the various parts.

In the drawing:

Y Figure l is a longitudinal'sectional view of my invention, parts thereof being shown fragmental;

Fig. 2 is a top plan view of an end plate used in connection with my invention, and

Fig. 3 is a similar view of a baffle plate used in connection therewith.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawing by the same reference characters.

My improved muiiler comprises an elongated hollow cylindrical member designated l having tapered cap portions 2 secured to the outer edges thereof, said cap members being provided with the standard sized aperture 3 to receive the exhaust pipe.

End plates 4 are mounted adjacent the end of the chamber members and within the same. The said end plate members are retained in the desired position by means of screws, designated 5. The end plate members comprise cylindrical disks having triangular-shaped openings 5 provided therein, the sides 4of the said openings extending radially from the center thereof. An aperture 6 is provided concentrically of the disk or plate for a purpose which will hereinafter appear.

A rod member 7 is mounted within the said chamber and extends longitudinally thereof, the ends of which are adapted to be rotatably mounted in the aperture 6. Bailie plates 8 are mounted on the free ends of the rod 7 on the outside of the end plate. These baffle plates comprise cylindrical disk members having radially extending cut-out portions 9 and arcuate-shaped cut-out portions 10 are provided extending from the radially extending cut-out portions. Triangular-shaped wing portions 11 thus formed are bent downwardly` for an obvious purpose.

Thrust bearings 12 are mounted on the rod 7 having a groove member extending transversely therethrough registering with an aperture formed in the rod member to receive the steel pins 13 thus insuring the rotation of the sleeve member with the rod. Lock washers 14 are mounted on the outer side of the nut and retained in rigid position by means of the lock nut 15 which is in threaded engagement with the free end of face.

the bolt or rod member 7. A sleeve 16 is mounted on the rod member having a bronze bearing plate 17 extending from the end plate about one-third Way of the length of the rod providing the desired bearing sur- The sleeve members 16 are provided with a plurality of apertures 18 providing means for lubricating the rod.

A spirally arranged web member 19 is mounted or formed on the rod 7, the outer edges thereof being `co-extensive With the inner diameter of the chamber 1.

The operation of my muffler is' obvious` and While I have herein illustrated and described with a considerable degree of particularity constructional details of the device embodying my invention, it is to be understood that the invention is not limited to the particular form and arrangement of the several parts which may be modiied within a Wide range and Without departing end of the sleeve, end plates having a plul rality of'openings therein, said plates having apertures concentrically thereof, a rod member extending longitudinally through said chamber and engaging said apertures, bal'ie plate members mounted on the rod adljacent the ends thereof, and an agitating means formed on said sleeve member. for a purpose specified. A

n testimony whereof, I aiix my signature hereto.

FRANK J. HAUMAN. 

